Login | Datasets | Logout
Jump to... Home PLOT search PLANT search COMMUNITY search Simple search Manage datasets Tutorial About FAQ ------- Site map VegBranch Data dictionary ERD

stdcommconcept2113621136

View Community Concepts - Detail

Pinus ponderosa / Juniperus horizontalis Woodland | Western Ecology Working Group of...
click to update datacart
Name: Pinus ponderosa / Juniperus horizontalis Woodland Reference: Western Ecology Working Group of... Description: This woodland association has been described from north-central (Little Rocky Mountains) and the plains of northeastern Montana. All occurrences are below 1160 m (3800 feet) on calcareous shales and sandstones of rolling uplands and foothills, generally on slope shoulders. Except for accidentals of Pseudotsuga menziesii and very scattered Juniperus scopulorum, Pinus ponderosa is the only tree present, with somewhat stunted specimens comprising between 40% and 70% canopy cover. The undergrowth is rather depauperate in species diversity. Juniperus horizontalis is always the dominant species but varies enormously in cover, from 10-70% (even greater cover noted in reconnaissance). Juniperus communis can also attain high cover values but is not consistently present. Rhus trilobata and Artemisia tridentata ssp. wyomingensis are highly constant but seldom comprise more than 5% cover. There is a strong difference between the stands in the Little Rocky Mountains, which have a very depauperate graminoid cover, and those of northeastern Montana wherein Pseudoroegneria spicata and Pascopyrum smithii can attain canopy covers of greater than 30%. The forb component seldom has more than a trace amount of any species; those with the greatest constancy are Solidago missouriensis, Thermopsis rhombifolia, and Linum perenne. Structurally and compositionally this association is similar to both Pinus ponderosa / Juniperus communis Woodland (CEGL000859) and Pinus flexilis / Juniperus communis Woodland (CEGL000807).  Accession Code: VB.CC.21136.PINUSPONDEROSAJ Plot-observations of this Community Concept: 0
	Party Perspective according to: NatureServe (organization) Perspective from: 26-Nov-1997 to: 17-Nov-2014
	status: accepted Community's Parent: Pinus ponderosa Woodland Alliance This Community's Level: Association This Community's Children: [none]		Names:   Translated: Ponderosa Pine / Creeping Juniper Woodland   UID: ELEMENT_GLOBAL.2.685334 NatureServe Explorer   Code: CEGL000860   Scientific: Pinus ponderosa / Juniperus horizontalis Woodland   Common: Ponderosa Pine / Creeping Juniper Woodland (convergence) and Synonyms: (undetermined) Pinus ponderosa / Juniperus horizontalis Woodland